Control method and device for starting and stopping lifting of can sealing machine and can sealing machine

Abstract

The invention relates to the technical field of can sealing packaging, in particular to a control method and device for starting and stopping lifting of a can sealing machine and the can sealing machine. The method comprises the steps that after a starting signal triggered by a switch of a can sealing machine clicked by a user is received, a lifting motor is started so that the lifting motor can drive an integrated fixing tray to move upwards, and a can to be sealed is placed on the integrated fixing tray; collecting a first electrical parameter of the lifting motor; and a first current electrical parameter of the lifting motor is collected, and when the difference value between the first current electrical parameter of the lifting motor and the first electrical parameter is larger than or equal to a first preset threshold value, a stop signal is sent to the lifting motor, and meanwhile, a rotating signal is sent to the rotating motor, so that the rotating motor rotates the can cover of the to-be-sealed can to conduct sealing operation. The problems that in the prior art, during can sealing, the bracket level is difficult to guarantee, a spring is prone to losing efficacy, and stress is uneven can be solved.

Description

Technical Field

[0001] This invention relates to the field of can sealing and packaging technology, and in particular to a control method, device, and can sealing machine for lifting, starting, and stopping a can sealing machine. Background Technology

[0002] The core of the sealing process of existing can sealing machines is to determine the lifting height through a "mechanical spring connection structure + touch switch" to complete the sealing: When sealing cans, traditional can sealing machines first use a mechanical spring connection structure to control the lifting component (such as a bracket) to press down. When the structure touches a preset switch, it is determined that the lifting height has reached the position required for sealing, and then the sealing operation is performed.

[0003] However, the inventors discovered that this method relies on the structure of a mechanical spring in conjunction with a touch switch to determine the height, which has problems such as difficulty in ensuring the level of the bracket, easy failure of the spring, and uneven force, resulting in low sealing quality. Summary of the Invention

[0004] This invention provides a control method, device, and sealing machine for lifting and stopping a can sealing machine, to solve problems in the prior art such as difficulty in ensuring the horizontal level of the bracket, easy failure of springs, and uneven force during can sealing.

[0005] In a first aspect, embodiments of the present invention provide a control method for the lifting and stopping of a can sealing machine, the can sealing machine including a lifting motor, a rotating motor, and an integrated fixed tray, the control method for the lifting and stopping of the can sealing machine including: When the start signal is received from the user clicking the switch of the can sealing machine, the lifting motor is started so that the lifting motor drives the integrated fixed tray to move upward, and the can to be sealed is placed on the integrated fixed tray; Collect the first electrical parameters of the lifting motor; The first current electrical parameter of the lifting motor is collected. When the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and a rotation signal is sent to the rotary motor so that the rotary motor rotates the lid of the can to be sealed to perform the sealing operation.

[0006] In one possible implementation, the first electrical parameter is a first power; The first electrical parameters of the lifting motor are collected, including: The first power of the lifting motor is collected during a second preset time period after the first preset time. Calculate the first average power of all first powers within the second preset time period.

[0007] In one possible implementation, when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, including: Calculate the power difference between the first current power and the first average power; If the power difference is greater than or equal to the first preset threshold, a stop signal is sent to the lifting motor.

[0008] In one possible implementation, after collecting the first current electrical parameter of the lifting motor, and when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and a rotation signal is sent to the rotary motor so that the rotary motor rotates the lid of the can to be sealed to perform the sealing operation, the method further includes: When the rotary motor drives the lid of the can to be sealed to rotate a preset number of revolutions, it triggers a micro switch to send a stop signal to the rotary motor and a start signal to the lifting motor, so that the lifting motor drives the integrated fixed tray to move downwards. When the lifting motor drives the integrated fixed tray to descend to the preset position, the stop switch is touched, and the lifting motor stops moving.

[0009] One possible implementation also includes: During the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the can sealing machine, the lifting motor is controlled to move upward for a preset time and then stop, while a fault prompt is issued.

[0010] In one possible implementation, during the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the sealing machine, the lifting motor is controlled to move upward for a preset time and then stop, while a fault indication is given, including: When the lifting motor drives the integrated fixed tray to move downward, the second electrical parameters of the lifting motor are collected; Collect the second current electrical parameters of the lifting motor; When the difference between the second current electrical parameter and the second electrical parameter of the lifting motor is greater than or equal to the second preset threshold, the lifting motor is controlled to move upward for a preset time and then stop, while a fault prompt is given.

[0011] Secondly, embodiments of the present invention provide a control device for lifting and stopping a can sealing machine, wherein the can sealing machine includes a lifting motor, a rotating motor, and an integrated fixed tray, and the control device for lifting and stopping the can sealing machine includes: The control module is used to start the lifting motor when it receives an opening signal triggered by the user clicking the switch of the can sealing machine, so that the lifting motor drives the integrated fixed tray to move upward and place the can to be sealed on the integrated fixed tray; The acquisition module is used to acquire the first electrical parameters of the lifting motor; The acquisition module is also used to acquire the first current electrical parameters of the lifting motor; The sending module is used to send a stop signal to the lifting motor when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, and at the same time send a rotation signal to the rotating motor so that the rotating motor rotates the lid of the can to be sealed to perform the sealing operation.

[0012] In one possible implementation, the first electrical parameter is a first power; The acquisition module is used to acquire the first power of the lifting motor during a second preset time period after a first preset time period; and to calculate the first average power of all the first power during the second preset time period.

[0013] In one possible implementation, the control module is further configured to calculate the power difference between the first current power and the first average power; If the first power difference is greater than or equal to the first preset threshold, a stop signal is sent to the lifting motor.

[0014] Thirdly, embodiments of the present invention provide a can sealing machine, including a memory, a controller, and a computer program stored in the memory and executable on the controller. When the controller executes the computer program, it implements the steps of the can sealing machine lifting and stopping control method as described in the first aspect or any possible implementation of the first aspect.

[0015] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program that, when executed by a controller, implements the steps of the control method for lifting and stopping a can sealing machine as described in the first aspect or any possible implementation thereof.

[0016] This invention provides a control method, device, and sealing machine for lifting and stopping a can sealing machine. Upon receiving an start signal triggered by a user clicking the machine's switch, the lifting motor is activated, causing an integrated fixed tray to move upwards and place the can to be sealed onto it. The method involves collecting first electrical parameters of the lifting motor and collecting its first current electrical parameters. When the difference between the first current electrical parameter and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and simultaneously a rotation signal is sent to a rotary motor to rotate the can lid for sealing. This invention solves the problems of inconsistent horizontal alignment and uneven force distribution associated with traditional spring structures by using an integrated tray and lifting motor drive, resulting in more stable load-bearing. The software-based acquisition of electrical parameters to determine position replaces mechanical touch switches, offering greater accuracy and reducing the likelihood of failure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating the implementation of the control method for lifting and stopping the can sealing machine provided in this embodiment of the invention. Figure 2 This is a schematic diagram of the can sealing machine provided in an embodiment of the present invention; Figure 3 This is a flowchart illustrating the implementation of the control method for lifting and stopping the can sealing machine provided in this embodiment of the invention. Figure 4 This is a schematic diagram of the structure of the control device for lifting and stopping the can sealing machine provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of a can sealing machine provided in an embodiment of the present invention. Detailed Implementation

[0019] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a flowchart illustrating the implementation of a control method for lifting and stopping a can sealing machine according to an embodiment of the present invention. The can sealing machine includes a lifting motor, a rotating motor, and an integrated fixed tray, as shown below. Figure 2 As shown in the diagram. The lifting motor is fixedly connected to the integrated fixed tray. The can to be sealed is placed on the tray and can move synchronously with the lifting motor's lifting action. The rotary motor is used to drive the lid of the can to be sealed to rotate, so as to complete the sealing operation.

[0022] It should be noted that the integrated fixed tray adopts a one-piece molded structure design, which has the characteristics of stable structure and uniform force distribution, avoiding problems such as tilting and shaking during movement, and ensuring the stability of the cans to be sealed after placement.

[0023] The integrated fixed tray does not contain a spring structure, ensuring that the cans to be sealed remain horizontal after placement and even during the operation of the lifting motor. Additionally, the tray is equipped with a limit device to fix the position of the cans to be sealed, preventing them from shifting during lifting and rotation.

[0024] The control method for starting and stopping the lifting mechanism of the can sealing machine is detailed below: Step 101: After receiving the start signal triggered by the user clicking the switch of the can sealing machine, start the lifting motor so that the lifting motor can drive the integrated fixed tray to move upward and place the can to be sealed on the integrated fixed tray.

[0025] This step is the initial preparation stage of the can sealing process of the can sealing machine. Its core purpose is to activate the lifting drive mechanism by receiving user operation signals, and move the integrated fixed tray to the preset placement height to provide a stable and horizontal support for the cans to be sealed, so as to ensure the accuracy and reliability of subsequent can sealing operations.

[0026] The can sealing machine is equipped with an independent control switch, such as Figure 2 As shown, this switch is the operating component for users to trigger the start of the equipment. When the user needs to perform can sealing operations, they can trigger the start signal of the can sealing machine by clicking the control switch. This start signal can be directly transmitted to the controller for the lifting and stopping of the can sealing machine, or it can be relayed through the controller and sent to the lifting motor, ensuring the timeliness and accuracy of signal transmission.

[0027] It should be noted that before the user triggers the device to start, the can to be sealed can be placed on the bearing surface of the integrated fixed tray. Understandably, the can lid is placed on the can, forming a can to be sealed.

[0028] Upon receiving the aforementioned activation signal, the controller immediately sends a drive command to the lifting motor to start it. The lifting motor and the integrated fixed tray are fixedly connected through a preset transmission mechanism (such as a lead screw, guide rod, or gear set). After the lifting motor starts, it outputs power, which converts the rotational motion into linear motion through the transmission mechanism, thereby driving the integrated fixed tray to move vertically upward.

[0029] This step achieves rapid preparation before sealing the can through a continuous process of "can placement - signal triggering - motor drive". The integrated fixed tray structure design combined with the precise drive of the lifting motor improves the efficiency and reliability of the pre-sealing preparation.

[0030] Step 102: Collect the first electrical parameters of the lifting motor.

[0031] The controller inside the can sealing machine collects the first electrical parameters of the lifting motor during operation. Here, "first" is used only to distinguish electrical parameters collected at different times, not to indicate order.

[0032] The first electrical parameter can be a parameter such as power or current. In this embodiment, power is used for subsequent description.

[0033] In one embodiment, the first electrical parameters of the lifting motor are collected, including: The first power of the lifting motor is collected during the second preset time period after the first preset time. Calculate the first average power of all first powers within the second preset time period.

[0034] The first preset time can be set according to requirements. In this embodiment, the value of the first preset time is not limited. For example, the first preset time can be 0.4, 0.5, etc. Similarly, the second preset time period can be set according to requirements. In this embodiment, the value of the second preset time period is not limited. For example, the second preset time period can be 0.4, 0.5, etc.

[0035] Since the current of the lifting motor fluctuates at the moment of startup, in order to avoid the unstable current from interfering with the data, this embodiment does not collect the current data during this stage, but collects it after the motor operating current has stabilized.

[0036] In this embodiment, the first power of the second time period is collected to obtain the first average power of the lifting motor. Since different can-sealing machines have different lifting motors, and even lifting motors of the same model may have power deviations due to manufacturing processes, and even the power of the same lifting motor may change after a period of aging, obtaining the average value of the first power can avoid these problems and enable more accurate control of the can-sealing machine's lifting start and stop. The second preset time period is a pre-set power collection cycle, the duration of which can be flexibly adjusted according to the operating conditions of the can-sealing machine (such as the weight of the cans to be sealed and the lifting stroke length) to ensure that the collected first power fully reflects the stable operating state of the motor.

[0037] This first average power can filter out interference from instantaneous power peaks or valleys, objectively reflecting the reference power level of the lifting motor during stable operation.

[0038] Step 103: Collect the first current electrical parameter of the lifting motor. When the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to the first preset threshold, send a stop signal to the lifting motor and send a rotation signal to the rotary motor so that the rotary motor can rotate the lid of the can to be sealed to perform the sealing operation.

[0039] This step is a crucial linkage in the switching of the can sealing machine from the lifting station to the sealing station. The core purpose is to accurately determine whether the lid of the can to be sealed has reached the preset sealing position by monitoring the operating electrical parameters of the lifting motor in real time, and then simultaneously stop the lifting motor and start the rotary motor to ensure smooth sealing action and accurate positioning, and ensure that the sealing quality meets industry standard requirements.

[0040] The data acquisition module continuously collects electrical parameters from the lifting motor during its operation. The first current electrical parameter is of the same type as the first electrical parameter, representing the motor's output power (unit: W), which directly reflects changes in the motor's load. When the integrated fixed tray lifts the can to be sealed, the load on the lifting motor increases when the can lid contacts the sealing mechanism, and the output power rises accordingly. In this embodiment, a high-precision power sensor is used to ensure the real-time performance and accuracy of the collected electrical parameters, avoiding positioning errors caused by signal delays.

[0041] The controller calculates the difference between the first current electrical parameter collected in real time and the first average power, i.e., the power difference between the first current power and the first average power. Simultaneously, the control unit has a built-in first preset threshold. This first preset threshold is a fixed value pre-calibrated based on the sealing pressure requirements of different sized cans to be sealed, the contact resistance of the sealing mechanism, and the rated power characteristics of the lifting motor. Its value must meet the requirement that "the can lid fits precisely against the sealing mechanism when the difference is within the acceptable range," ensuring positioning accuracy while preventing overload damage to the equipment. When the calculated power difference is greater than or equal to the first preset threshold, it is determined that the can to be sealed has reached the preset sealing position and is ready to start the sealing operation. At this point, a stop signal is sent to the lifting motor, which stops. Then, the rotary motor performs the sealing operation, realizing dual-motor linkage control and sealing execution.

[0042] When the lifting motor stops, the integrated fixed tray and the can to be sealed remain in the current sealing position to avoid positional displacement due to motor inertia. After the rotary motor starts, it drives the sealing component (such as the edge rolling roller) to rotate through the transmission mechanism, and performs edge rolling and sealing operation on the lid of the can to be sealed. Throughout the process, the lid and the sealing component cooperate in a coordinated manner to ensure that the edge of the can body is flat and free from defects such as false rolling, gaps, and skipped sealing.

[0043] This step replaces the traditional positioning method of mechanical touch switches in can sealing machines with a logic of "power parameter monitoring - load change identification - precise positioning triggering," effectively solving the problems of easy wear and tear on mechanical structures and low positioning accuracy. Simultaneously, the synchronous linkage design of lifting stop and rotation start shortens the process connection time, improves can sealing efficiency, and ensures that the positioning accuracy meets the coaxiality and parallelism tolerance requirements of the can sealing machine's tray and sealing head, guaranteeing that the can sealing quality meets requirements and is stable during production.

[0044] like Figure 3 As shown, after collecting the first current electrical parameters of the lifting motor, and when the difference between the first current electrical parameter and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and a rotation signal is sent to the rotary motor so that the rotary motor rotates the lid of the can to be sealed to perform the sealing operation, the process also includes: Step 104: After the rotary motor drives the lid of the can to be sealed to rotate a preset number of times, the micro switch is triggered to send a stop signal to the rotary motor and a start signal to the lifting motor, so that the lifting motor can drive the integrated fixed tray to move downward. When the rotary motor receives the rotation signal and drives the lid of the can to be sealed to rotate a preset number of times, the sealing operation is completed. The preset number of rotations is pre-calibrated according to the can type and specifications (such as aluminum cans and tin cans) to ensure that the can lid is completely sealed with a rolled edge, without any leakage or loosening of the seal. At this time, the output shaft of the rotary motor triggers a preset microswitch, which feeds back the sealing completion signal to the controller.

[0045] Upon receiving the signal, the controller simultaneously executes two linkage commands: first, it sends a stop signal to the rotary motor to immediately stop its operation, preventing excessive rotation from causing deformation of the can lid or wear on the equipment; second, it sends a start signal to the lifting motor, instructing the lifting motor to run in reverse, driving the integrated fixed tray and the sealed can body to move downwards in the vertical direction, entering the reset process.

[0046] Step 105: When the lifting motor drives the integrated fixed tray to descend to the preset position, the stop switch is touched, and the lifting motor stops moving.

[0047] Optionally, a stop switch is located on the worktable below the lifting motor, so that the stop switch is activated when the lifting motor descends to the preset position. Because the stop switch is at a certain height, the reset position of the integrated fixed tray is at a certain height from the worktable, preventing damage to the worktable.

[0048] In one embodiment, it further includes: During the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the sealing machine, the lifting motor will be controlled to move upward for a preset time and then stop, while a fault prompt will be issued.

[0049] Foreign objects can include the operator's hands that have not been removed, tools, and other debris. If there are foreign objects on the worktable, the lifting motor must not continue descending to avoid damage to people or property.

[0050] In one embodiment, during the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the can sealing machine, the lifting motor is controlled to move upward for a preset time and then stop, while a fault indication is given, including: When the lifting motor drives the integrated fixed tray to move downward, the second electrical parameters of the lifting motor are collected; Collect the second current electrical parameter of the lifting motor; when the difference between the second current electrical parameter and the second electrical parameter is greater than or equal to the second preset threshold, control the lifting motor to move upward for a preset time and then stop, and at the same time issue a fault prompt.

[0051] The principle of foreign object detection is as follows: When the lifting motor drives the integrated fixed tray to move downward, the output power will increase if it presses on a foreign object on the worktable. Therefore, the principle of foreign object detection is the same as the detection principle of detecting whether the top of the tank has reached the preset sealing position during the lifting motor's upward movement. That is, during the process of the lifting motor driving the integrated fixed tray to move downward, the second power of the lifting motor is collected after the first preset time and the second preset time period is calculated, and the second average power of all the second power in the second preset time period is calculated.

[0052] Based on the second average power determined above, if the difference between the second current power and the second average power collected subsequently is greater than or equal to the second preset threshold, it is determined that a foreign object has been detected on the worktable of the can sealing machine. Here, the second preset threshold is a threshold set based on experience. In this embodiment, the value of the second preset threshold is not limited. For example, the second preset threshold can be set with different levels according to needs, and different levels correspond to different power values. For example, a total of 10 levels can be set, with level 1 corresponding to 1W, level 2 corresponding to 2W, ... level 10 corresponding to 10W.

[0053] The preset time for the lifting motor to move upwards is 0.1 seconds, after which it stops, allowing staff to easily remove foreign objects.

[0054] Steps 104-105 are the core steps for resetting and ensuring safety after the sealing machine completes the sealing operation. The core purpose is to achieve a smooth reset of the integrated fixed tray through motor linkage control. At the same time, through foreign object detection and weight detection, a dual safety protection mechanism is used to avoid personnel injury or equipment damage during the descent / ascent process, ensuring the closed-loop reliability and operational safety of the entire sealing process.

[0055] The lifting motor stops running, and the integrated fixed tray is stably stopped in the preset position. The entire sealing-resetting process is completed, and the operator can take out the sealed can and prepare for the next round of work.

[0056] This part of the process, through the design of "linkage reset + power adjustment + dual safety protection", not only solves the problems of slow reset and inaccurate positioning of traditional can sealing machines, but also replaces simple mechanical protection with software program control, which significantly improves the safety of operation. At the same time, relying on the structural stability of the integrated fixed tray, the integrity of the can is further guaranteed during the reset process.

[0057] This invention provides a control method for the lifting and stopping of a can sealing machine. Upon receiving an start signal triggered by a user clicking the can sealing machine's switch, the lifting motor is activated, causing an integrated fixed tray to move upwards, placing the can to be sealed onto the tray. First electrical parameters of the lifting motor are collected; second, first current electrical parameters of the lifting motor are collected. When the difference between the first current electrical parameter and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and simultaneously, a rotation signal is sent to the rotary motor, causing the rotary motor to rotate the can lid to perform the sealing operation. This invention, through the integrated tray and lifting motor drive, solves the problems of inconsistent horizontal alignment and uneven force distribution inherent in traditional spring structures, resulting in more stable load bearing. Position determination via software-collected electrical parameters replaces mechanical touch switches, offering precision and reducing the likelihood of failure.

[0058] In addition, the embodiments of the present invention improve sealing efficiency and quality consistency by performing graded speed regulation and linkage control during the operation of the lifting motor. This invention strengthens safety protection and safeguards equipment and personnel through foreign object detection and fault alarm mechanisms.

[0059] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0060] The following are device embodiments of the present invention. For details not described in detail, please refer to the corresponding method embodiments described above.

[0061] Figure 4 The diagram shows a schematic of a control device for lifting and stopping a can sealing machine according to an embodiment of the present invention. For ease of explanation, only the parts related to the embodiment of the present invention are shown, and are described in detail below: like Figure 4 As shown, the can sealing machine includes a lifting motor, a rotating motor, and an integrated fixed tray. The control device for lifting and stopping the can sealing machine includes: a control module 41, a data acquisition module 42, and a data transmission module 43.

[0062] Control module 41 is used to start the lifting motor after receiving the start signal triggered by the user clicking the switch of the can sealing machine, so that the lifting motor drives the integrated fixed tray to move upward and place the can to be sealed on the integrated fixed tray. Acquisition module 42 is used to acquire the first electrical parameters of the lifting motor; Control module 41 is also used to control the lifting motor to operate with electrical parameters greater than the first electrical parameter; The acquisition module 42 is also used to acquire the first current electrical parameters of the lifting motor; The sending module 43 is used to send a stop signal to the lifting motor when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to the first preset threshold, and at the same time send a rotation signal to the rotating motor so that the rotating motor rotates the lid of the can to be sealed to perform the sealing operation.

[0063] In one possible implementation, the first electrical parameter is the first power; When the acquisition module 42 acquires the first electrical parameters of the lifting motor, it is used for: The first power of the lifting motor is collected after the first preset time and during the second preset time period, and the first average power of all the first power during the second preset time period is calculated.

[0064] In one possible implementation, when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, the sending module 43 sends a stop signal to the lifting motor, and is used to: Calculate the power difference between the first current power and the first average power; If the power difference is greater than or equal to the first preset threshold, a stop signal is sent to the lifting motor.

[0065] In one possible implementation, when the rotary motor drives the lid of the can to be sealed to rotate a preset number of revolutions, it triggers a micro switch. After receiving the feedback signal, the sending module 43 sends a stop signal to the rotary motor and a start signal to the lifting motor, so that the lifting motor drives the integrated fixed tray to move downward. When the lifting motor drives the integrated fixed tray to a preset position, it triggers a stop switch, and the lifting motor stops moving.

[0066] In one possible implementation, the control module 41 is also used to control the lifting motor to move upward for a preset time and stop when a foreign object is detected on the worktable of the sealing machine during the downward movement of the integrated fixed tray driven by the lifting motor, while simultaneously providing a fault prompt.

[0067] In one possible implementation, the acquisition module 42 is further configured to acquire the second electrical parameters of the lifting motor when the lifting motor drives the integrated fixed tray to move downward; and to acquire the second current electrical parameters of the lifting motor. The control module 41 is also used to control the lifting motor to move upward for a preset time and stop when the difference between the second current electrical parameter and the second electrical parameter of the lifting motor is greater than or equal to the second preset threshold, and at the same time to provide a fault prompt.

[0068] The above embodiment provides a control device for the lifting and stopping of a can sealing machine. Upon receiving an start signal triggered by a user clicking the can sealing machine's switch, the control module starts the lifting motor, which drives an integrated fixed tray upwards, placing the can to be sealed onto the integrated fixed tray. A data acquisition module collects the first electrical parameters of the lifting motor; another module collects the first current electrical parameters of the lifting motor. When the difference between the first current electrical parameter and the first electrical parameter is greater than or equal to a first preset threshold, a sending module sends a stop signal to the lifting motor and a rotation signal to the rotary motor, causing the rotary motor to rotate the can lid to perform the sealing operation. This embodiment of the invention solves the problems of inconsistent horizontal alignment and uneven force distribution inherent in traditional spring structures by using an integrated tray and a lifting motor drive, resulting in more stable load bearing. Position determination via software-collected electrical parameters replaces mechanical touch switches, offering precision and reducing the likelihood of failure.

[0069] In addition, the embodiments of the present invention improve sealing efficiency and quality consistency by performing graded speed regulation and linkage control during the operation of the lifting motor. This invention strengthens safety protection and safeguards equipment and personnel through foreign object detection and fault alarm mechanisms.

[0070] Figure 5 This is a schematic diagram of a can sealing machine provided in an embodiment of the present invention. Figure 5 As shown, the can-sealing machine 5 in this embodiment includes: a controller 50, a memory 51, and a computer program 52 stored in the memory 51 and executable on the controller 50. When the controller 50 executes the computer program 52, it implements the steps in the control methods described above for lifting, starting, and stopping the can-sealing machine, for example... Figure 1 Steps 101 to 103 are shown. Alternatively, when the controller 50 executes the computer program 52, it implements the functions of each module / unit in the above-described device embodiments, for example... Figure 4 The functions of each module / unit are shown.

[0071] For example, computer program 52 can be divided into one or more modules / units, one or more of which are stored in memory 51 and executed by controller 50 to complete the present invention. One or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of computer program 52 in can sealing machine 5. For example, computer program 52 can be divided into... Figure 4 The modules / units shown are shown.

[0072] The can sealing machine 5 may include, but is not limited to, a controller 50 and a memory 51. Those skilled in the art will understand that... Figure 5 This is merely an example of the can sealing machine 5 and does not constitute a limitation on the can sealing machine 5. It may include more or fewer components than shown, or combine certain components, or different components. For example, the can sealing machine may also include input / output devices, network access devices, buses, etc.

[0073] The controller 50 may be a central processing unit (CPU), or other general-purpose controllers, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose controller may be a microcontroller, or any conventional controller.

[0074] The memory 51 can be an internal storage unit of the can sealing machine 5, such as a hard drive or memory. The memory 51 can also be an external storage device of the can sealing machine 5, such as a plug-in hard drive, SmartMedia Card (SMC), Secure Digital (SD) card, or Flash Card. Furthermore, the memory 51 can include both internal and external storage units of the can sealing machine 5. The memory 51 is used to store computer programs and other programs and data required by the can sealing machine. The memory 51 can also be used to temporarily store data that has been output or will be output.

[0075] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0077] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0078] In the embodiments provided by this invention, it should be understood that the disclosed apparatus / can sealing machine and method can be implemented in other ways. For example, the apparatus / can sealing machine embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of the apparatus or units may be electrical, mechanical, or other forms.

[0079] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0080] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0081] If integrated modules / units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium. When executed by the controller, the computer program can implement the steps of the control methods for lifting and stopping the can sealing machine described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A control method of lift start-stop of a canning machine, characterized by, The can sealing machine includes a lifting motor, a rotating motor, and an integrated fixed tray. The control method for lifting and stopping the can sealing machine includes: When the start signal is received from the user clicking the switch of the can sealing machine, the lifting motor is started so that the lifting motor drives the integrated fixed tray to move upward, and the can to be sealed is placed on the integrated fixed tray; Collect the first electrical parameters of the lifting motor; The first current electrical parameter of the lifting motor is collected. When the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and a rotation signal is sent to the rotary motor so that the rotary motor rotates the lid of the can to be sealed to perform the sealing operation.

2. The control method of the can lifter according to claim 1, wherein The first electrical parameter is the first power; The first electrical parameters of the lifting motor are collected, including: The first power of the lifting motor is collected during a second preset time period after the first preset time. Calculate the first average power of all first powers within the second preset time period.

3. The control method of the can lifter according to claim 2, wherein When the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, including: Calculate the power difference between the first current power and the first average power; If the power difference is greater than or equal to the first preset threshold, a stop signal is sent to the lifting motor.

4. The control method of the can lifter according to any one of claims 1 to 3, characterized in that, After collecting the first current electrical parameter of the lifting motor, and when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, a stop signal is sent to the lifting motor, and a rotation signal is sent to the rotary motor so that the rotary motor rotates the lid of the can to be sealed to perform the sealing operation, the process further includes: When the rotary motor drives the lid of the can to be sealed to rotate a preset number of revolutions, it triggers a micro switch to send a stop signal to the rotary motor and a start signal to the lifting motor, so that the lifting motor drives the integrated fixed tray to move downwards. When the lifting motor drives the integrated fixed tray to descend to the preset position, the stop switch is touched, and the lifting motor stops moving.

5. The control method of the can lifter according to claim 4, wherein Also includes: During the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the can sealing machine, the lifting motor is controlled to move upward for a preset time and then stop, while a fault prompt is issued.

6. The control method of the can lifter according to claim 5, wherein During the downward movement of the integrated fixed tray driven by the lifting motor, if a foreign object is detected on the worktable of the can sealing machine, the lifting motor is controlled to move upward for a preset time and then stop, while a fault indication is given, including: When the lifting motor drives the integrated fixed tray to move downward, the second electrical parameters of the lifting motor are collected; Collect the second current electrical parameters of the lifting motor; When the difference between the second current electrical parameter and the second electrical parameter of the lifting motor is greater than or equal to the second preset threshold, the lifting motor is controlled to move upward for a preset time and then stop, while a fault prompt is given.

7. A control device for lift start-stop of a canning machine, characterized by, The can sealing machine includes a lifting motor, a rotary motor, and an integrated fixed tray. The control device for lifting and stopping the can sealing machine includes: The control module is used to start the lifting motor when it receives an opening signal triggered by the user clicking the switch of the can sealing machine, so that the lifting motor drives the integrated fixed tray to move upward and place the can to be sealed on the integrated fixed tray; The acquisition module is used to acquire the first electrical parameters of the lifting motor; The acquisition module is also used to acquire the first current electrical parameters of the lifting motor; The sending module is used to send a stop signal to the lifting motor when the difference between the first current electrical parameter of the lifting motor and the first electrical parameter is greater than or equal to a first preset threshold, and at the same time send a rotation signal to the rotating motor so that the rotating motor rotates the lid of the can to be sealed to perform the sealing operation.

8. The control device for lift start-stop of a can closing machine according to claim 7, wherein The first electrical parameter is the first power; The acquisition module is used to acquire the first power of the lifting motor during a second preset time period after a first preset time period; and to calculate the first average power of all the first power during the second preset time period.

9. The control device for lifting and stopping the can sealing machine according to claim 8, characterized in that, The control module is also used to calculate the power difference between the first current power and the first average power; If the power difference is greater than or equal to the first preset threshold, a stop signal is sent to the lifting motor.

10. A can sealing machine, comprising a memory and a controller, wherein the memory stores a computer program, and the controller calls and runs the computer program stored in the memory, characterized in that, When the controller executes the computer program, it implements the steps of the control method for lifting and stopping the sealing machine as described in any one of claims 1 to 6.

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